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GAMMA instabus

Technical Product Information

May 2008

AP 251/11, Motion detector IP55 (titanium white) 5WG1 251-3AB11

AP 251/21, Motion detector IP55 (anthracite) 5WG1 251-3AB21

Siemens AG AP 251/_1, 4 pages Technical Manual

Industry Sector, Building Technologies

Electrical Installation Technology © Siemens AG 2008 Update: http://www.siemens.com/gamma

P.O.Box 10 09 53, D-93009 Regensburg Subject to change without prior notice

2.13.1.5/1

Product and Applications Description

The IP55 motion detector (short title AP 251/_1) is a

surface mounted device with integrated KNX interface

for mounting on a wall or ceiling (see figure 1) in inside

or outside areas. It works by passive detection of heat

radiated by bodies in its capture zone. It can be set sepa-

rately for the beginning and end of detected movements,

whether these are to be reported over the bus and

whether a further telegram is also to be sent. Owing to

its large capture zone of 290°, the motion sensor is also

suitable for mounting on a 90° outside corner. A special

mounting base is available for this purpose as an acces-

sory (5TC7 900 in titanium white and 5TC 901 in anthra-

cite).

By using an infrared remote control which is also avail-

able as an accessory (5TC7 902), a user can conveniently

set, by means of the IR receiver incorporated in the mo-

tion detector, as well the detector's mode (test mode,

brightness-dependent or brightness-independent mode,

standard mode, pulsed mode) as the brightness thresh-

old and the delay time, independently.

The factory setting of the mode in the as-delivered state

is brightness-dependent motion detection with a bright-

ness threshold of 7 lux and a delay time of 2 minutes.

The detector electronics are powered via the bus voltage.

Application Program

The motion detector AP 251/_1 requires the application

program „25 S1 Motion Detector 909101“ which can be

configured and loaded with the Engineering Tool Soft-

ware (ETS) from version ETS2 V1.3 upwards.

Via the ETS it can be set separately for the beginning and

end of detected movements, whether these are to be

reported over the bus, whether the telegram “Movement

= On” respectively “Movement = Off” has to be sent only

once or cyclically and whether an additional telegram is

to be sent only once or cyclically. The telegram to be sent

additionally may be a switching command On/Off, an 8-

bit value (0-255) or a telegram for recalling an 8-bit

scene.

Via a separate communication object the motion detec-

tor may be blocked and released if required. If it is

blocked no telegram will be sent neither at the beginning

nor at the end of a detected motion.

Installation Instructions

• The device can be used for permanent installations in

inside or outside areas.

V WARNING

• The device must be mounted and commissioned by an

authorised electrician.

• For planning and construction of electric installations,

the relevant guidelines, regulations and standards of

the respective country are to be considered.

Technical Specifications

Sensor

• Capture zone: 290°

• Mounting height: 2 – 4 m, ideally 2.50 m

• Range (mounting height 2.50 m, +22°C): approx. 16 m

• Dawn/twilight sensor: 0.5 - 2000 lux

• Delay time 5 seconds - 30 minutes

• Pulse mode 1 second ON, 9 seconds OFF

• Test mode: Brightness-independent mode,

after-run time 2 seconds

Power supply

• Bus voltage: via bus line

• Bus current: 11 mA

Operating elements

• 1 commissioning button (see figure 1): for switching

over between normal mode / addressing mode

• 2 buttons (S1 and S2, see figure 2):

for local setting of operating mode, brightness switch-

ing threshold and after-run time of the motion detec-

tor, independent of the bus

Display elements

• 1 red LED: for display of normal mode / addressing

mode (off / on)

• 1 red LED (below the lens of the motion detector):

for confirmation after operating mode and parameter

settings

Connections

• Bus connection: screw-less bus terminal, single-wire

0.6...0.8 mm ∅, insulation strip length 5 mm.

GAMMA instabus

Technical Product Information

May 2008

AP 251/11, Motion detector IP55 (titanium white) 5WG1 251-3AB11

AP 251/21, Motion detector IP55 (anthracite) 5WG1 251-3AB21

Technical Manual AP 251/_1, 4 pages Siemens AG

Industry Sector, Building Technologies

Update: http://www.siemens.com/gamma © Siemens AG 2008 Electrical Installation Technology

Subject to change without prior notice P.O.Box 10 09 53, D-93009 Regensburg

2.13.1.5/2

Mechanical data

• Housing: plastic

• Dimensions:: approx. 180 mm × 86 mm × 74 mm

(L × W × H)

• Tilting arm adjustment zone: max. 120°

• Weight: approx. 245 g

• Fire load: approx. 7500 kJ

Electric safety

• Degree of pollution (according to IEC 60664-1): 2

• Type of protection (according to EN 60529): IP 55

• Overvoltage category (according to IEC 60664-1): III

• Bus: safety extra-low voltage SELV DC 24 V

• Device complies with: EN 50090-2-2

EMC requirements

• complies with EN 50090-2-2

Environmental conditions

• Climatic withstand capability: EN 50090-2-2

• Ambient temperature during operation: - 25 ... + 50 °C

• Storage temperature: - 25 ... + 70 °C

• rel. humidity (not condensing): 5 ... 93 %

Markings

KNX EIB

CE mark

complies with the EMC regulations (residential and func-

tional buildings), and low voltage regulations

Location and Function of the Display and Operat-

ing Elements

Figure 1: Position of display and operating elements on

the printed circuit board of the motion detector

A1 Key for toggling between normal mode and address-

ing mode for transferring the physical address.

A2 LED for indicating normal mode (LED Off) or ad-

dressing mode (LED On); it is automatically extin-

guished once the physical address has been trans-

ferred.

Figure 2: Position of display and operating elements on

the sensor side of the motion detector

S1 Operating key S1 (Brightness)

S2 Operating key S2 (Time)

Mounting and wiring

Mounting site

For optimum motion detection, the motion detector

should be mounted sideways on to the direction of mo-

tion (see figure 3), as far as possible at a height of 2.5 m,

as far as possible not over but under a luminaire and with

at least 0.5 m separation from any luminaire in the cap-

ture zone.

Figure 3: Mounting site and direction of motion

Capture zone

In order to avoid unwanted responses from the motion

detector, you must consider potential sources of inter-

ference (such as warm air flows, moving bushes or

trees). Unwanted capture zones can be filtered out as

required by fitting the cover screen supplied. It is to be

cut out accordingly for this purpose. The cover screen

fixing ring must not be separated when cutting out seg-

ments (see figure 4). No movements will be captured by

areas of the lens covered by the cover screen.

GAMMA instabus

Technical Product Information

May 2008

AP 251/11, Motion detector IP55 (titanium white) 5WG1 251-3AB11

AP 251/21, Motion detector IP55 (anthracite) 5WG1 251-3AB21

Siemens AG AP 251/_1, 4 pages Technical Manual

Industry Sector, Building Technologies

Electrical Installation Technology © Siemens AG 2008 Update: http://www.siemens.com/gamma

P.O.Box 10 09 53, D-93009 Regensburg Subject to change without prior notice

2.13.1.5/3

Figure 4: Adjustment of the cover screen

The capture zone of the detector can also be altered by

turning the lens through some +/- 30° to the right or left.

The capture range can be changed by adjusting the tilt-

ing arm (see figure 5).

Figure 5: Adjusting range of the tilting arm

Mounting and connecting the bus cable

The motion detector's connection box must be correctly

positioned when mounting on a wall (TOP showing, see

figures 6 and 7). You can use the dowels and screws

supplied for this. The spacing of the drilled holes in the

connection box is to be matched on a 60 mm flush-

mounted socket.

Figure 6: Correct position of the connection box

Figure 7: Mounting the connection box

The bus cable is to be brought in through one of the

punched out openings in the connection box. The insula-

tion of the red and black wire is to be stripped back for

approx. 5 mm, the wires are to be plugged into the part

of the bus terminal with the same colour and the bus

terminal is then to be plugged into its mounting on the

detector's printed connection board.

The detector is then to be plugged into the connection

box and screwed to it with the fixing screw (see figure

8).

Figure 8: Screwing of the motion detector

Depending on the requirement and the type of mount-

ing, the corresponding condensation opening adjoining

the screw opening is to be punched out (see figures 7

and 9).

Figure 9: Punching out of the condensation opening

GAMMA instabus

Technical Product Information

May 2008

AP 251/11, Motion detector IP55 (titanium white) 5WG1 251-3AB11

AP 251/21, Motion detector IP55 (anthracite) 5WG1 251-3AB21

Technical Manual AP 251/_1, 4 pages Siemens AG

Industry Sector, Building Technologies

Update: http://www.siemens.com/gamma © Siemens AG 2008 Electrical Installation Technology

Subject to change without prior notice P.O.Box 10 09 53, D-93009 Regensburg

2.13.1.5/4

Commissioning

Initialising phase

On first applying the bus voltage and after every bus

voltage recovery, the motion detector starts its initialisa-

tion phase. For this, the detector output is switched on

approx. 2 seconds. The red LED inside the lens flashes

approx. 3 times per second, until the device enters test

mode automatically after a maximum of 45 seconds.

Test mode

Test mode is a brightness-independent mode with an ON

period of 1 second and an after-run time of 2 seconds. It

can be used for manual checking of the capture zone and

to change the alignment or sensing angle of the lens. At

the end of the test mode period of 10 minutes, the mo-

tion sensor switches automatically to the factory setting

(brightness threshold 7 lux, delay time 2 minutes) or to

the individual setting made.

Test mode will be started automatically on first connect-

ing to the bus voltage only after the initialisation phase

has cycled. During any later bus voltage failure, only the

initialisation phase will then be recycled and the motion

sensor then enters the individual setting directly or the

factory setting if no individual setting has been pro-

grammed yet.

If test mode is re-activated, then this can be triggered by

holding down S1 and S2 simultaneously for at least 3

seconds (max. 5 seconds). The LED also flashes quickly

for 3 seconds and then stays ON. If you now release the

buttons, then test mode is confirmed by the LED flashing

twice. Test mode can be interrupted prematurely by

tapping S1 or S2 (see figure 2).

Mode and parameter settings

The following table shows the setting options using the

S1 and S2 pushbuttons.

Whereas the detector is switched on for the set delay

time with every motion captured during brightness-

independent operation, during brightness-dependent

operation the detector is switched on with a captured

motion only if the brightness falls below the set switch-

ing threshold. If a brightness switching threshold differ-

ing from the factory setting is wanted, then the user can

store the current brightness value as the new switching

threshold in the detector's memory by holding S1 down

for a period of less than 3 seconds. When doing this, take

care that the sensor is not covered by the user while

storing the new value.

In pulsed mode, the detector output is switched on for 1

second after the brightness falls below the threshold and

motion is detected. It will then no longer respond to a

movement for 9 seconds.

Action

Operation

LED

acknowl.

S1 S2

Reset (return

to factory

setting)

Hold down simultaneously for at least 6

seconds (LED flashes rapidly and remains on

after 3 seconds)

2 flashes

approx. 0.5

sec.

Test mode Hold down simultaneously for at least

3 seconds (LED flashes rapidly and remains

on after 3 seconds) and a max. 5 seconds

2 flashes

approx. 0.5

sec.

Leave test

mode

Press S1 or S2.

Alternatively, wait for 10 minutes: Detector

reverts automatically to the individual or

factory setting

_____

Toggling

brightness-

dependent

switching

brightness-

independent

switching

and vice

versa

Hold down for at least

3 seconds.

Preset brightness

threshold is retained

2 flashes

approx. 0.5

sec.

Brightness-

independent

switching is

indicated by a

short flash

every

5 seconds

Toggling

between

pulse mode

delay time

mode and

vice versa

Hold down for at

least

3 seconds.

Preset switching

time is retained

2 flashes

approx. 0.5

sec.

Store

brightness

threshold

in brightness-

dependent

switching

mode

Hold down for less

than 3 seconds

1 flash

approx. 0.5

sec.

Programming

individual

after-run

time between

5 seconds

and

30 minutes

differing

from the

factory

setting

1. Hold down for

less than 3 seconds:

starts the timer

2. Hold down for

less than 3 seconds:

stops the timer

Permanent

flashing from

timer start

until stop

General Notes

• Any faulty devices should be returned to the local

Siemens office.

• If you have further questions concerning the product

please contact our technical support:

℡ +49 (0) 180 50 50-222

" +49 (0) 180 50 50-223

" www.siemens.com/automation/support-request